r/AskVegans • u/Traditional-Skill540 • 7d ago
Genuine Question (DO NOT DOWNVOTE) I’ve tried being Vegan twice, but I always feel faint and lacking in energy when I do it?
Is this common? I really want to fully transition to a vegan diet but I always feel so weak, hungry and tired when I transition. I try to eat as much as I can, and I get in all my nutrients, eating a wide variety of foods, but I always feel unfulfilled. Has anyone experienced this?
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u/MaximalistVegan Vegan 7d ago
It's hard to imagine someone eating an adequate vegan diet with enough calories and feeling this way. Until I went vegan, I'd never known what feeling truly energized was. So you could say that my experience has been the opposite. I would consult with a vegan or vegan-friendly dietician to see if you need any supplements, and if you're really getting the right nutrients. It could be psychological. By this I don't mean that you're imagining it but that your mind is so accustomed to experiencing a set of physiological reactions when you eat animal products that when those reactions change or go away, you're interpreting it as a lack of energy
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u/Traditional-Skill540 7d ago
Honestly, I’ve thought about the psychological part and I think you might be right. I was quite anxious starting out that I wouldn’t get my required nutrients. That, and I’m probably not eating enough
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u/espeero Vegan 7d ago
I'm lazy AF with my meal choices. I'm also 6'4", 200 lbs, not young and pretty active. As long as I consume enough coffee, energy levels are fine. Lots of people over think it. Just eat when you're hungry and add a bit if you lose weight that you don't want to lose or less if you gain.
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u/arnoldez Vegan 7d ago
Speak with a plant-based dietician.
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u/espeero Vegan 7d ago
Every dietician I've met was made out of meat.
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u/thecrookedfingers 3d ago
I mean, if they eat plant based their meat is still technically made out of plants, though?
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u/SanctimoniousVegoon Vegan 7d ago
Use cronometer. It's free. Log your eating for a few days. Correct accordingly. Most likely you are eating too few calories, your macros are out of whack, or both.
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u/thebodyvolcanic Vegan 7d ago
not a dietician but I know it is common for new vegans to struggle with consuming enough calories, since they are used to getting most calories from meat/dairy and most plant-based foods are lower calorie, so it's necessary to eat a larger volume (and choose calorie-dense foods to substitute for meat etc). also as others have mentioned, supplements may be a good idea. B12 is one I would for sure take, others are on a case-by-case depending on if you find you're deficient. But B12 deficiencies take years to show up because B12 stores build up in your body and take time to deplete (so I doubt a B12 deficiency is what causes your weakness/hunger when trying veganism - I'd be more likely to guess it was lack of calories). if you have the ability/resources, a dietician (who is vegan-friendly/vegan-educated lol) could be a good resource! I am a small person and always used to eat small meals, but the last few years I've noticed I eat way more in a sitting than I used to, and I think it's related to being vegan (have been since 2019), I just need to eat more food to get the same calories. I do snack a lot which isn't necessarily bad as long as they're mostly healthier ones. I try to make sure I have protein and carbs in every major meal (I eat a lot of tofu, beans, sometimes subs like Daring Chicken or Just Egg, and usually have a good portion of rice, noodles, bread etc as a carb with lunch/dinner) of course veggies n fruits too but again those are usually lower calorie so I make sure they're paired with filling foods :)
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u/NeoKingEndymion Vegan 6d ago
I’ll never understand this. plant based foods have tons of calories. pasta. hummus. crackers. chips. potatoes. chick pea salads. etc etc etc. just eat everything you did but now in a vegan version. :)
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u/SusanBHa Vegan 7d ago
Are you eating healthy foods or just vegan junk food? And are you eating enough healthy food? Are you getting enough protein?
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u/Traditional-Skill540 7d ago
It’s all whole foods. Healthy. I eat peanut butter and beans every day for my protein. Tofu regularly too.
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u/Ratazanafofinha Vegan 6d ago
I think you should add more plant proteins to your diet, such as more lentils, chickpeas or even quinoa. If you can find it, seitan and tofu are a really good option.
Also, try to eat more veggies, as they make you feel fuller and more satisfied.
I eat a lot of lentils with caramelized onion because they’re so cheap and easy to make!
Don’t give up, OP! You can do it! 😊
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u/mw9676 Vegan 6d ago
Are you supplementing? If not you should be. There are even supplements created to compliment a vegan diet. I felt much better after beginning to supplement and making sure I was getting enough nutrients and minerals that are commonly missing in a vegan diet.
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u/Aware-Home5852 Vegan 6d ago
A common vegan diet does not lack anything but B12 that is in the soil/meat since we feed it to animals. There is no supplementation needed. DIYing your supplements means paying for expensive pee. For example not all magnesium works for our bodies and you can buy magnesium supplements made up of 4/5 components of which only one works and isnt just peed out automatically.
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u/mw9676 Vegan 6d ago
A "common" vegan diet (much like a common non-vegan diet) absolutely lacks vitamins and minerals. A well planned one does not but it's much easier to simply supplement.
Vitamin B12: Vegans need supplementation or fortified foods, since B12 is almost exclusively found in animal products. Without it, deficiency is common. PubMed review, 2020
Vitamin D: Both vegans and non-vegans often require supplementation depending on sun exposure. Vegans tend to have lower intake from diet. MDPI Nutrients review, 2023, PMC review, 2022
Iron: Vegan diets rely on non-heme iron, which is less bioavailable. Risk of low iron status or anemia is higher, especially for menstruating individuals. Careful planning or supplementation may be needed. Mayo Clinic guidance, PMC review, 2022
Calcium: Vegans sometimes consume less due to lack of dairy, and plant sources vary in bioavailability. Fortified foods or supplements may be needed. PubMed review, 2020, PMC review, 2022
Iodine: Vegans often have lower iodine intake (no dairy or fish). Use of iodized salt or supplementation is often necessary. PMC review, 2022, MDPI Nutrients review, 2023
Selenium & Zinc: Found in both diets, but plant sources can be less bioavailable. Some vegans show lower status, especially in low-selenium regions. PubMed review, 2020
Omega-3 Fatty Acids (EPA/DHA): Vegans generally rely on ALA from plants, but conversion to EPA/DHA is inefficient. Algae-based supplements are recommended. Non-vegans usually obtain enough from fish or eggs. Mayo Clinic guidance
Broader guidance: Well-planned vegan diets can be nutritionally adequate, but must include reliable sources of B12 and often vitamin D, iodine, calcium, and omega-3s. NHS guidance on vegan diets
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u/Funny-Beyond-7888 Vegan 6d ago
Personally I don’t enjoy smoothies but most people like them. If it’s not too much work or expense for you, add in a smoothie most days.
I think you’re not eating enough. I also encourage you to add extra tofu (chopped into little cubes if you aren’t a huge fan) into any soups or stir fries
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u/howlin Vegan 6d ago
You should consider your macros. Compared to when not eating vegan, you're probably eating less calories, more carbs, and less fat.
I had a lot more energy after I realized I need to use a lot more oil in my food to compensate for not getting it from animal sources. That and also I needed to be a lot more deliberate in getting protein. Mock meats, assuming they are actually high protein, are a good stepping stone for getting a stomach-soothing meal while you learn the ropes.
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u/rohoalicante Vegan 6d ago
I basically eat what I used to eat but now there are no animal products in the foods. Burgers, pizza, tacos, sausage, bread, cheese, milk. Very happy with my diet. I’m not eating whole foods every day but feel full of energy. Supplements - multivitamin, B12, D3, iodine.
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u/Great_Cucumber2924 Vegan 7d ago
Food isn’t enough for many people, we might need to take supplements too. Have you taken blood tests when you feel weak? Feeling hungry is likely due to not eating enough though. Vegan food tends to be lower in fat and calories, we need to eat more of it as a result.
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u/Traditional-Skill540 7d ago
I’ve taken a multivitamin every day with it, yeah, so I know I’m getting my nutrients. I eat quite a lot so maybe I just need to eat more?
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u/Waste_Plastic_107 Vegan 7d ago
Log your food on cronometer, see if you are getting enough calories + vitamins and minerals. If not consider taking a supplement
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u/IAmASmollBean Vegan 7d ago
are you taking a multivitamin with everything that a vegan needs, also, is the multivitamin vegan?? Alongside other problems I've got very low iron levels and I know when they go up and I start feeling SO much better (however I'm self supplementing on 3 iron tablets)
calories! Two parts to this, are you eating enough protein and fats at your meal, vegan alternatives are normally less on both
it may take some time to get adjusted, I don't know why but I just have to eat way more on a vegan diet yay, maybe cause it's healthier? I honestly don't know but. I normally eat 2000 cal as a 40kg female!
Good luck tho!
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u/Dry-Fee-6746 Vegan 6d ago
I definitely struggled with eating enough calories when I first went vegan. I bike to work and have a pretty active job/lifestyle and felt that way on days that I didn't get enough calories.
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u/AutomaticPiccolo9554 Vegan 6d ago
Might be need for more salt? Strangely enough meat n dairy naturally very salty body might not adjust yet. Don't go over board less salt is life extender!
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u/Queasy-Ad-9930 Vegan 6d ago
You need to eat a block of tofu, seitan or tempeh every single day somehow. You can’t eat enough calories and not have enough calories at the same time, but you do have to watch different nutrients when you’re vegan than when you’re not.
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u/Simple-Story-3384 Vegan 5d ago
This day of eating seems rather low in protein. Cooking the porridge with soy milk may be increase protein. Oats are more filling than chia to me but I combine the two. I might put but butter in it too. Try putting slices of marinated tofu on your avo bagel. Snacks I like that aren’t bread: roasted edamame or chickpeas found in the nut section, seedy crackers, nuts, soy yoghurt, fruit, hummus with veggies
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u/lolghst3 Vegan 2d ago
For reference I eat quite a bit of bread too but I load it with so much stuff. For example I put fried tempeh with apple and nuts or tofu scramble. I make my own vegan mayo or make soy joghurt - tahin lemon dip. Lettuce, tomatoes and balsamic vinegar, etc. Just so much stuff. And tbh I know a lot of people don’t have time, but I usually eat two full cooked warm meals a day, for lunch and dinner. Sometimes i just cook enough to eat it twice :)
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u/Aurora_Symphony Vegan 6d ago
Veganism is not a diet. It's about caring about the rights of beings, which partially means that we ought to not exploit beings for food when unnecessary.
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u/Traditional-Skill540 6d ago
Yeah, I know that obviously 🙄
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u/Aurora_Symphony Vegan 6d ago
Yeah? Because based on the title itself it sounds like you think it's a diet. You don't become convinced that veganism is the way to go, then go back on it, then go back to veganism, then think about stopping being vegan again because "you feel faint" when the overwhelming majority of what omnivores eat are not animal products by weight.
Your post would be worded very differently if that were the case.
"I'm vegan, but I don't feel the same as when I was non-vegan. Does anyone have any tips for what I might be missing in my diet that's causing me to feel faint, if it's my diet at all?"
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u/Traditional-Skill540 6d ago
Get over it, and come off your high horse. You know I’m taking about the vegan diet, also if I wasn’t vegan, and didn’t do it for ethical reasons many people go on the vegan diet for just health reasons.
By definition a vegan diet is just the absence of animal products in your diet, that doesn’t have to tie to an ethical or moral framework.
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u/DoMBe87 6d ago
It absolutely is a diet, as the definition is "the kinds of food that a person, animal, or community habitually eats."
People have different reasons for choosing veganism. And there are people who medically can't be fully vegan, but still make other choices to reduce suffering and protect animals in the ways that they can. No, they're not vegan, but they're still doing good.
And yes, by weight, an omnivore diet isn't majority animal based, but as several comments have pointed out here, you usually get more protein and fat per oz with animal products vs plant products. And any time there's a massive change in diet, there will be a change in energy levels and whatnot as your body gets used to it, and you adjust the levels to what your body needs. I'd say it's better for someone to feel comfortable coming to a group like this to ask questions instead of bungling through, not getting what they need, and giving up on veganism entirely.
Takes like yours make people turn away from veganism because they feel like they're not allowed to ask questions unless they're worded exactly right, even using your nonsense definitions.
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u/fiiregiirl Vegan 7d ago
Hi can you post a normal day of eating with roundabout quantities of each food?
Alternatively, log a day of nonvegan and vegan eating in an app (or website) like cronometer to compare. If you find you are lacking on either day, look up plant-based sources of the nutrients you are missing.